The Illinois Department of Transportation Awarded the $226 Million Locomotive Contract to Siemens and Cummins

Caterpillar Inc. filed a new round of protests over the Illinois Department of Transportation's decision to award a $226 million contract for high-speed passenger railroad locomotives to AG and Cummins Inc.

The Peoria, Ill., company on Monday said it filed complaints with the Illinois Procurement Policy Review Board and the Cook County, Ill., Chancery Court. About 32 locomotives are being purchased with federal funds for five...